... CE/ISO9001/Patent 4)No noise energy saving generator, wind turbineCompared with normal vertical wind turbines, ours have 4 featuresand ours start up ... wind speed is 1.8m/s.1.The blade is ... state in the house.We produce5kw,10kw,20kw,50kw,100kw,200kw,300kw vertical wind turbines.Our wind turbine genetator is an ideal power supply ...